python-作业2



#######################################作业##############################3

1，登陆
import time
a = '''
(C)reate:
(L)ogin:
(D)elete:
(V)iew:
    input your choice:
'''

while True:
    choice = raw_input(a).lower()
    dic = {"user1":"123", "user2": "234"}
if choice == 'c':
    newuser =raw_input("username:")
    newpassword =raw_input("password:")
    dic[newuser] = newpassword
    print newuser
    print "新用户创建成功！"
elif choice == 'l':
    user =raw_input("username:")
    password =raw_input("password:")
   if user in dic and dic[user]==password:
        print "登陆成功！"
    else:
        print "请输入正确的用户名和密码！"
elif choice == 'd':
    user =raw_input("username:")
    password = raw_input("password：")
    if user not in dic:
        print "该用户不存在！"
    elif dic[user]!= password:
        print "密码不正确！"
    else:
        print "删除成功！"
elif choice == 'v':
    user =raw_input("username:")
    password =raw_input("password:")
    if user not in dic:
        print "该用户不存在！"
    elif dic[user]!= password:
        print "密码不正确！"
    else:
        print user
        print "正常显示！"
else:
    print "请重新输入！"



2，购物车
dic = []
salary = input("your salary:")
shopinfo = [
    ('iphone',1000),
    ('book',100),
    ('bike',200)
]
for k,v in enumerate(shopinfo):
    print k,v
num = input("num:")
if num == 0:
    print "added [iphone] to yourshopping"
    if salary < 1000:
        print "您的余额不足！"
    else:
        dic.append('iphone')
elif num == 1:
    print "added [book] to yourshopping"
    if salary < 100:
        print "您的余额不足！"
    else:
        dic.append('book')
elif num == 2:
    print "added [bike] to yourshopping"
    if salary < 200:
        print "您的余额不足！"
    else:
        dic.append('bike')
tuichu = input("quit:")
if tuichu == 'q':
    quit(shopinfo)
    print k,v in enumerate(dic)